| Tail Number / N-Number | N9540 |
| Manufacturer | BEECH |
| Model | 3NM |
| Year Built | 1952 |
| Manufacturer's Serial Number | CA-244 |
| Aircraft Type | Fixed wing multi engine |
| Category | Land |
| Builder Certification | Type Certificated |
| Number of Seats | 10 seats |
| Weight Class | CLASS 1 (Up to 12,499 pounds gross take off weight) |
| Engine Manufacturer | P&W |
| Engine Model | R-985 SERIES |
| Engine Type | Reciprocating |
| Number of Engines | 2 engines |
| Horsepower per Engine | 450 hp (336 kW) |
| Total Horsepower | 900 hp (671 kW) |
| Average Cruising Speed | 153 miles per hour |
| Type of Registrant | Individual |
| Owner Name | HARDIN DONALD R |
| Street | 4500 HARDIN RD |
| City | SAINT HELENA |
| State | CA |
| Zip Code | 94574-9600 |
| Region | Western-Pacific |
| County | Napa County |
| Country | US |
| Fractional Ownership | No |
| Airworthiness Classification | Standard |
| Airworthiness Date | 1973-04-24 |
| Certificate Issue Date | 2016-02-12 |
| Last Action Date | 2022-03-21 |
| Expiration Date | 2029-02-28 |
| Status | Valid Registration |
| Mode S Code | 53242733 |
| Mode S Code Hex | AD45DB |